The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a positive refractive power; a third lens having a positive refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 3.00≤f1/f2≤6.00; and −7.00≤(R1+R2)/(R1−R2)≤−1.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.
Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A camera optical lens, comprising, from an object side to an image side: a first lens having a positive refractive power; a second lens having a positive refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power and comprising an object side surface being concave in a paraxial region and an image side surface being convex in the paraxial region; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power, wherein the camera optical lens satisfies following conditions: 3.00≤f1/f2≤6.00; −7.00≤(R1+R2)/(R1−R2)≤−1.00; −1.24≤f4/f≤−0.32; −2.95≤(R7+R8)/(R7−R8)≤−0.78; and 0.03≤d7/TTL≤0.13, where f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; R1 denotes a curvature radius of an object side surface of the first lens; R2 denotes a curvature radius of an image side surface of the first lens; f denotes a focal length of the camera optical lens; f4 denotes a focal length of the fourth lens; R7 denotes a curvature radius of the object side surface of the fourth lens; R8 denotes a curvature radius of the image side surface of the fourth lens; d7 denotes an on-axis thickness of the fourth lens; and TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.
This invention relates to camera optical lenses and addresses the need for compact and high-performance lens systems. The camera optical lens comprises six lenses arranged sequentially from the object side to the image side. The first, second, and third lenses each have a positive refractive power. The fourth lens has a negative refractive power and features an object side surface that is concave and an image side surface that is convex in the paraxial region. The fifth lens has a positive refractive power, and the sixth lens has a negative refractive power. The lens system is designed to meet specific optical performance criteria defined by several conditions. These conditions relate the focal lengths of individual lenses to each other and to the overall focal length of the camera optical lens. They also define relationships between the curvature radii of specific lens surfaces and the thickness of the fourth lens relative to the total optical length of the system. Specifically, the ratio of the focal length of the first lens to the focal length of the second lens is between 3.00 and 6.00. The sum of the curvature radii of the first lens's object and image side surfaces, divided by their difference, is between -7.00 and -1.00. The ratio of the focal length of the fourth lens to the focal length of the entire camera optical lens is between -1.24 and -0.32. The sum of the curvature radii of the fourth lens's object and image side surfaces, divided by their difference, is between -2.95 and -0.78. Finally, the on-axis thickness of the fourth lens divided by the total optical length is between 0.03 and 0.13.
2. The camera optical lens as described in claim 1 , wherein the object side surface of the first lens is convex in a paraxial region, and the image side surface of the first lens is concave in the paraxial region, and the camera optical lens further satisfies following conditions: 1.81≤f1/f≤14.90; and 0.03≤d1/TTL≤0.09, where f denotes a focal length of the camera optical lens; d1 denotes an on-axis thickness of the first lens; and TTL denotes a total optical length from the object side surface of the first lens to an image plane of the camera optical lens along an optic axis.
This invention relates to a camera optical lens system designed to achieve high optical performance in a compact form. The lens system addresses the challenge of balancing image quality with miniaturization, particularly for applications in portable devices where space is limited. The optical lens includes a first lens positioned closest to the object side, with specific surface curvatures and thickness constraints to optimize light convergence and reduce overall size. The object side surface of the first lens is convex in the paraxial region, while the image side surface is concave in the same region, enhancing light refraction efficiency. The lens system satisfies two key conditions: the ratio of the focal length of the first lens (f1) to the total focal length of the lens system (f) ranges between 1.81 and 14.90, ensuring proper light convergence. Additionally, the ratio of the on-axis thickness of the first lens (d1) to the total optical length (TTL) from the object side surface to the image plane ranges between 0.03 and 0.09, promoting a slim profile. These constraints collectively improve image sharpness while maintaining a compact design suitable for modern imaging devices.
3. The camera optical lens as described in claim 2 , further satisfying following conditions: 2.90≤f1/f≤11.92; and 0.04≤d1/TTL≤0.07.
This invention relates to a camera optical lens system designed for compact imaging devices, addressing the need for high-quality imaging in limited space. The lens system includes multiple lens elements arranged to achieve a wide field of view while maintaining optical performance. The invention focuses on optimizing the focal length ratio of the first lens to the total focal length of the system (f1/f) and the ratio of the thickness of the first lens to the total track length (d1/TTL) to balance compactness and image quality. The specified ranges for these ratios (2.90≤f1/f≤11.92 and 0.04≤d1/TTL≤0.07) ensure the lens system remains thin and lightweight while minimizing aberrations and distortion. The design incorporates at least one aspheric lens to correct spherical and chromatic aberrations, enhancing sharpness and color accuracy. The lens system is particularly suited for mobile devices, drones, and other applications requiring a small form factor without compromising optical performance. The invention improves upon prior art by providing a more efficient balance between size reduction and image quality, addressing challenges in miniaturization while maintaining high-resolution imaging capabilities.
4. The camera optical lens as described in claim 1 , wherein the second lens comprises an object side surface being convex in a paraxial region and an image side surface being concave in the paraxial region, and the camera optical lens further satisfies following conditions: 0.60≤f2/f≤2.49; −7.26≤(R3+R4)/(R3−R4)≤−0.94; and 0.04≤d3/TTL≤0.14, where f denotes a focal length of the camera optical lens; R3 denotes a curvature radius of the object side surface of the second lens; R4 denotes a curvature radius of the image side surface of the second lens; d3 denotes an on-axis thickness of the second lens; and TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.
This invention relates to a camera optical lens system designed to achieve high imaging performance while maintaining a compact structure. The system addresses the challenge of balancing optical quality with miniaturization, particularly in portable electronic devices where space is limited. The lens system includes multiple lenses, with a specific focus on the second lens, which has a convex object-side surface and a concave image-side surface in the paraxial region. The design ensures optimal light convergence and correction of aberrations. Key optical parameters are constrained to specific ranges: the ratio of the focal length of the second lens (f2) to the total focal length of the lens system (f) is between 0.60 and 2.49, ensuring proper magnification and field curvature control. The shape factor of the second lens, defined by the ratio of the sum and difference of its surface curvatures (R3 and R4), is constrained between -7.26 and -0.94 to manage spherical and chromatic aberrations. Additionally, the ratio of the on-axis thickness of the second lens (d3) to the total track length (TTL) is between 0.04 and 0.14, optimizing space efficiency without compromising structural integrity. These constraints collectively enhance image sharpness, reduce distortion, and enable a slim profile suitable for modern imaging applications.
5. The camera optical lens as described in claim 4 , further satisfying following conditions: 0.96≤f2/f≤1.99; −4.53≤(R3+R4)/(R3−R4)≤−1.17; and 0.07≤d3/TTL≤0.12.
This invention relates to an optical lens system for cameras, specifically designed to improve imaging performance in compact devices such as smartphones. The lens system addresses the challenge of achieving high optical quality while maintaining a small form factor, which is critical for modern portable imaging applications. The lens system includes multiple lens elements arranged to optimize light transmission, reduce aberrations, and enhance image sharpness. The lens system includes at least five lens elements, with specific curvature and spacing parameters to control optical properties. The second lens element has a focal length ratio (f2/f) between 0.96 and 1.99, ensuring balanced magnification and field of view. The third and fourth lens elements have a curvature ratio (R3+R4)/(R3−R4) between -4.53 and -1.17, which helps minimize spherical and chromatic aberrations. Additionally, the thickness of the third lens element (d3) relative to the total track length (TTL) is between 0.07 and 0.12, optimizing structural integrity without compromising compactness. The lens system is designed to achieve high-resolution imaging with reduced distortion and improved light efficiency, making it suitable for applications requiring both performance and miniaturization. The specified conditions ensure that the lens system maintains optical precision while fitting within the spatial constraints of modern portable devices.
6. The camera optical lens as described in claim 1 , wherein the third lens comprises an object side surface being concave in a paraxial region and an image side surface being convex in the paraxial region, and the camera optical lens further satisfies following conditions: 0.36≤f3/f≤1.44; 0.65≤(R5+R6)/(R5−R6)≤3.33; and 0.04≤d5/TTL≤0.21, where f denotes a focal length of the camera optical lens; f3 denotes a focal length of the third lens; R5 denotes a curvature radius of the object side surface of the third lens; R6 denotes a curvature radius of the image side surface of the third lens; d5 denotes an on-axis thickness of the third lens; and TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.
This invention relates to camera optical lens systems, specifically addressing the design of a third lens element to optimize optical performance while maintaining compactness. The third lens has a concave object-side surface and a convex image-side surface in the paraxial region, contributing to precise light control. The lens system satisfies three key conditions: the ratio of the third lens's focal length (f3) to the overall lens focal length (f) ranges between 0.36 and 1.44, ensuring balanced refractive power. The shape factor of the third lens, defined by the sum and difference of its surface curvatures (R5 and R6), falls between 0.65 and 3.33, optimizing light convergence. Additionally, the third lens's on-axis thickness (d5) relative to the total track length (TTL) is between 0.04 and 0.21, promoting a slim profile. These constraints collectively enhance image sharpness, reduce aberrations, and minimize lens bulk, making the design suitable for high-performance, compact camera modules in smartphones or other portable devices. The system achieves a balance between optical quality and physical size, addressing the demand for thinner lenses without compromising image clarity.
7. The camera optical lens as described in claim 6 , further satisfying following conditions: 0.57≤f3/f≤1.15; 1.04≤(R5+R6)/(R5−R6)≤2.67; and 0.07≤d5/TTL≤0.17.
This invention relates to an optical lens system for cameras, specifically designed to improve imaging performance while maintaining compactness. The lens system addresses the challenge of balancing high optical quality with a slim form factor, which is critical for modern portable devices like smartphones. The lens includes multiple lens elements arranged to correct aberrations and enhance image sharpness. The invention focuses on optimizing the focal length ratio of a third lens element relative to the total focal length of the system, ensuring a well-corrected field of view. Additionally, the curvature ratio of the fifth and sixth lens surfaces is controlled to minimize distortion and spherical aberrations. The thickness of the fifth lens element relative to the total track length (TTL) of the lens system is also constrained to maintain a compact design without compromising optical performance. These conditions collectively ensure the lens system achieves high-resolution imaging with reduced size and weight, making it suitable for integration into thin-profile devices. The design improvements enable better light transmission and reduced chromatic aberrations, resulting in clearer and more accurate images.
8. The camera optical lens as described in claim 1 , further satisfying the conditions: −0.78≤f4/f≤−0.40; −1.84≤(R7+R8)/(R7−R8)≤−0.98; and 0.05≤d7/TTL≤0.11.
This invention relates to an optical lens system for cameras, specifically addressing the need for compact, high-performance lenses with improved imaging quality. The lens system includes multiple lens elements arranged to achieve a balance between miniaturization and optical performance. The invention focuses on optimizing the focal length ratio of a fourth lens element (f4/f), the shape factor of adjacent lens surfaces (R7+R8)/(R7−R8), and the thickness ratio of a seventh lens element relative to the total track length (d7/TTL). The focal length ratio constraint (−0.78 ≤ f4/f ≤ −0.40) ensures proper light convergence while maintaining a compact form factor. The shape factor constraint (−1.84 ≤ (R7+R8)/(R7−R8) ≤ −0.98) optimizes the curvature of the seventh and eighth lens surfaces to reduce aberrations. The thickness ratio constraint (0.05 ≤ d7/TTL ≤ 0.11) balances structural integrity with space efficiency. These conditions collectively enhance image sharpness, reduce distortion, and improve overall optical performance in a compact lens design. The system is particularly suited for mobile devices and other applications requiring small, high-quality camera lenses.
9. The camera optical lens as described in claim 1 , wherein the fifth lens comprises an object side surface being convex in a paraxial region and an image side surface being convex in the paraxial region, and the camera optical lens further satisfies following conditions: 0.37≤f5/f≤1.21; 0.25≤(R9+R10)/(R9−R10)≤1.41; and 0.06≤d9/TTL≤0.22, where f denotes a focal length of the camera optical lens; f5 denotes a focal length of the fifth lens; R9 denotes a curvature radius of the object side surface of the fifth lens; R10 denotes a curvature radius of the image side surface of the fifth lens; d9 denotes an on-axis thickness of the fifth lens; and TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.
This invention relates to a camera optical lens system designed to improve imaging performance while maintaining compactness. The system includes a fifth lens with specific surface curvatures and optical parameters to enhance image quality. The fifth lens has a convex object-side surface and a convex image-side surface in the paraxial region, ensuring optimal light convergence. The lens system satisfies three key conditions: the ratio of the fifth lens's focal length (f5) to the total focal length (f) ranges between 0.37 and 1.21, balancing magnification and distortion control. The shape factor of the fifth lens, defined by the curvature radii of its object-side (R9) and image-side (R10) surfaces, falls between 0.25 and 1.41, optimizing aberration correction. Additionally, the fifth lens's on-axis thickness (d9) relative to the total track length (TTL) is between 0.06 and 0.22, ensuring a slim profile without compromising structural integrity. These constraints collectively improve sharpness, reduce chromatic aberrations, and maintain a compact form factor suitable for modern imaging devices. The design addresses the challenge of achieving high-resolution imaging in thin, lightweight lenses, particularly for smartphones and portable electronics.
10. The camera optical lens as described in claim 9 , further satisfying following conditions: 0.59≤f5/f≤0.96; 0.40≤(R9+R10)/(R9−R10)≤1.13; and 0.09≤d9/TTL≤0.18.
This invention relates to a camera optical lens system designed to improve imaging performance in compact devices such as smartphones. The lens system addresses the challenge of achieving high optical quality while maintaining a small form factor, which is critical for modern portable electronics. The lens system includes multiple lens elements arranged to optimize light refraction and minimize aberrations, ensuring sharp and clear images. The optical lens system includes a fifth lens element with specific curvature and thickness parameters. The focal length of the fifth lens (f5) relative to the total focal length of the system (f) is constrained between 0.59 and 0.96, ensuring proper light convergence. The ratio of the radii of curvature of the ninth and tenth surfaces (R9 and R10) is controlled between 0.40 and 1.13 to maintain optimal surface shapes for reducing distortion. Additionally, the thickness of the fifth lens (d9) relative to the total track length (TTL) of the lens system is set between 0.09 and 0.18 to balance compactness and optical performance. These constraints collectively enhance image sharpness, reduce chromatic aberrations, and improve overall optical efficiency, making the lens system suitable for high-resolution imaging in space-limited applications. The design ensures compatibility with advanced imaging sensors while maintaining a slim profile.
11. The camera optical lens as described in claim 1 , wherein the sixth lens comprises an image side surface being concave in a paraxial region, and the camera optical lens further satisfies following conditions: −1.65≤f6/f≤−0.49; 0.39≤(R11+R12)/(R11−R12)≤2.70; and 0.02≤d11/TTL≤0.10, where f denotes a focal length of the camera optical lens; f6 denotes a focal length of the sixth lens; R11 denotes a curvature radius of an object side surface of the sixth lens; R12 denotes a curvature radius of the image side surface of the sixth lens; d11 denotes an on-axis thickness of the sixth lens; and TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.
This invention relates to a camera optical lens system designed to improve imaging performance while maintaining compactness. The system addresses the challenge of balancing optical quality with miniaturization, particularly in portable devices where space is limited. The sixth lens in the system has an image-side surface that is concave in the paraxial region, contributing to aberration correction and enhanced image sharpness. The lens system satisfies specific optical conditions: the ratio of the sixth lens's focal length (f6) to the overall focal length (f) ranges between -1.65 and -0.49, ensuring proper light convergence. The shape factor of the sixth lens, defined by the curvature radii of its object-side (R11) and image-side (R12) surfaces, falls between 0.39 and 2.70, optimizing light bending. Additionally, the sixth lens's on-axis thickness (d11) relative to the total optical length (TTL) is between 0.02 and 0.10, maintaining a slim profile. These constraints collectively improve image clarity, reduce distortion, and enable a compact form factor suitable for modern imaging applications.
12. The camera optical lens as described in claim 11 , further satisfying following conditions: −1.03≤f6/f≤−0.61; 0.62≤(R11+R12)/(R11−R12)≤2.16; and 0.04≤d11/TTL≤0.08.
This invention relates to an optical lens system for cameras, specifically addressing the need for compact, high-performance lenses with improved imaging quality. The lens system includes multiple lens elements arranged to correct aberrations and enhance optical performance while maintaining a small form factor. The invention focuses on optimizing the design of a sixth lens element, which is a negative meniscus lens with specific curvature and thickness constraints. The focal length ratio of the sixth lens to the overall system (f6/f) is constrained between -1.03 and -0.61 to balance magnification and distortion correction. The shape factor of the sixth lens, defined by the ratio of the sum to the difference of its front and rear radii (R11 and R12), is controlled between 0.62 and 2.16 to optimize light convergence and reduce spherical aberrations. Additionally, the thickness of the sixth lens (d11) relative to the total track length (TTL) is limited to 4% to 8% to ensure compactness without sacrificing structural integrity. These constraints collectively improve image sharpness, reduce chromatic aberrations, and enable a thinner lens system suitable for modern portable devices. The design ensures high-resolution imaging while maintaining manufacturability and cost efficiency.
13. The camera optical lens as described in claim 1 , further satisfying a following condition: 0.47≤f12/f≤2.13, where f denotes a focal length of the camera optical lens; and f12 denotes a combined focal length of the first lens and the second lens.
A camera optical lens system is designed to improve imaging performance by optimizing the focal length relationship between specific lens elements. The system includes multiple lenses arranged along an optical axis, where the first and second lenses are positioned closest to the object side. The invention addresses the challenge of balancing compactness and optical quality in camera lenses, particularly for applications requiring high-resolution imaging in limited space, such as smartphones or compact digital cameras. The key innovation lies in the specific ratio of the combined focal length of the first and second lenses (f12) to the overall focal length of the lens system (f), constrained by the condition 0.47 ≤ f12/f ≤ 2.13. This range ensures optimal light convergence and aberration correction while maintaining a slim profile. The first lens is typically a meniscus lens with positive refractive power, and the second lens is a meniscus lens with negative refractive power, contributing to the overall focal length ratio. The design minimizes distortion, spherical aberration, and chromatic aberration, enhancing image sharpness and clarity. The lens system may also include additional lenses with specific refractive indices and Abbe numbers to further refine optical performance. The invention enables manufacturers to produce high-quality, compact camera lenses suitable for modern imaging devices.
14. The camera optical lens as described in claim 13 , further satisfying a following condition: 0.75≤f12/f≤1.70.
The invention relates to an optical lens system for cameras, specifically addressing the challenge of designing compact, high-performance lenses with improved imaging quality. The lens system includes multiple lens elements arranged to achieve a balance between optical performance and physical size. A key feature is the inclusion of a lens group with a specific focal length ratio relative to the overall focal length of the lens system. This ratio, defined as 0.75≤f12/f≤1.70, ensures optimal light convergence and aberration correction while maintaining a slim profile suitable for modern portable devices. The lens group is positioned to minimize distortion and chromatic aberration, enhancing sharpness and color accuracy. The design also incorporates aspherical surfaces on one or more lens elements to further reduce optical distortions. The overall configuration allows for a wide field of view and high-resolution imaging in a compact form factor, making it ideal for smartphones, tablets, and other space-constrained applications. The focal length ratio constraint ensures consistent performance across different manufacturing tolerances, improving reliability and production yield. This lens system addresses the need for high-quality imaging in thin, lightweight devices without compromising optical performance.
15. The camera optical lens as described in claim 1 , wherein a total optical length TTL from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis is smaller than or equal to 5.21 mm.
This invention relates to a compact camera optical lens system designed for portable electronic devices, addressing the need for high-performance imaging in limited space. The lens system includes multiple lenses arranged along an optical axis to form an image on an image plane. A key feature is the total optical length (TTL), measured from the object-side surface of the first lens to the image plane, which is constrained to be 5.21 mm or less. This compact design ensures the lens system can be integrated into thin devices like smartphones while maintaining optical performance. The lenses are arranged to correct aberrations, such as spherical and chromatic aberrations, and achieve a wide field of view. The system may also include an aperture stop to control light entry and an image sensor positioned at the image plane to capture the formed image. The compact TTL enables slim device designs without sacrificing image quality, making it suitable for modern portable imaging applications. The lens materials and coatings are selected to optimize light transmission and reduce reflections, further enhancing performance in a small form factor.
16. The camera optical lens as described in claim 15 , wherein the total optical length TTL of the camera optical lens is smaller than or equal to 4.97 mm.
The invention relates to a compact camera optical lens system designed for portable electronic devices, addressing the need for high-quality imaging in limited space. The lens system includes multiple lens elements arranged to achieve a wide field of view while maintaining optical performance. Key features include a first lens with positive refractive power, a second lens with negative refractive power, and a third lens with positive refractive power, each contributing to aberration correction and image sharpness. The system further incorporates an aperture stop to control light entry and an image sensor positioned at a focal plane. The total optical length (TTL) of the lens system is constrained to be 4.97 mm or less, ensuring compatibility with slim-profile devices. This compact design balances optical performance with miniaturization, making it suitable for smartphones, tablets, and other portable imaging applications. The lens elements are arranged to minimize chromatic and spherical aberrations while maximizing light transmission efficiency. The system achieves a high-resolution image with reduced distortion, meeting the demands of modern digital photography in space-constrained environments.
17. The camera optical lens as described in claim 1 , wherein an F number of the camera optical lens is smaller than or equal to 2.47.
A camera optical lens system is designed to achieve high image quality with a compact and lightweight structure, particularly for portable electronic devices. The lens system addresses the challenge of balancing optical performance with miniaturization, ensuring sharp imaging while maintaining a small form factor. The lens includes multiple lens elements arranged in a specific sequence to correct aberrations and enhance resolution. Key features include aspheric surfaces on certain lens elements to reduce distortion and spherical aberration, and a lens element with a high refractive index to minimize chromatic aberration. The lens system also incorporates an aperture stop to control light entry and improve depth of field. A notable aspect of this design is its low F-number, which is smaller than or equal to 2.47, enabling the lens to capture more light in low-light conditions while maintaining sharpness. This configuration ensures high-resolution imaging in a compact package, suitable for applications such as smartphones, tablets, and other portable imaging devices. The lens system's design optimizes both optical performance and physical dimensions, making it ideal for modern electronic devices requiring high-quality imaging in a small footprint.
18. The camera optical lens as described in claim 17 , wherein the F number of the camera optical lens is smaller than or equal to 2.42.
A camera optical lens system is designed to achieve high image quality with a compact structure, addressing the need for improved optical performance in portable devices. The lens system includes multiple lens elements arranged to correct aberrations and enhance imaging capabilities. Specifically, the lens system features a configuration where the first lens has a positive refractive power and a convex object-side surface, while the second lens has a negative refractive power and a concave image-side surface. The third lens has a positive refractive power and a convex image-side surface, and the fourth lens has a negative refractive power and a concave image-side surface. The fifth lens has a positive refractive power and a convex object-side surface. The lens system further includes an aperture stop positioned to control light entry, and the total track length of the lens system is optimized to reduce overall size. Additionally, the lens system is designed to achieve a fast aperture with an F number smaller than or equal to 2.42, enabling better low-light performance while maintaining sharpness and clarity. The optical design ensures minimal distortion, chromatic aberration, and spherical aberration, making it suitable for high-resolution imaging applications.
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November 10, 2019
March 1, 2022
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